I am, not sure really what the benefits are! You will probably get that info from their site. They do host courses and seminars from time to time though you don't have to be a member for those. For me the benefit of being a shareholder is reduced registration fees.
Yes, me too. I think registration fees were loads less if you become a shareholder of the IHB. Its a while since I became a member but it must have made sense at the time!!